CN110829624A - Self-adaptive matching system for magnetic resonance wireless charging - Google Patents
Self-adaptive matching system for magnetic resonance wireless charging Download PDFInfo
- Publication number
- CN110829624A CN110829624A CN201911185105.8A CN201911185105A CN110829624A CN 110829624 A CN110829624 A CN 110829624A CN 201911185105 A CN201911185105 A CN 201911185105A CN 110829624 A CN110829624 A CN 110829624A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- pin
- resistor
- chip
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 61
- 238000004891 communication Methods 0.000 claims abstract description 36
- 239000003990 capacitor Substances 0.000 claims description 846
- 239000013078 crystal Substances 0.000 claims description 21
- 230000003044 adaptive effect Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 102100024452 DNA-directed RNA polymerase III subunit RPC1 Human genes 0.000 claims description 6
- 101000689002 Homo sapiens DNA-directed RNA polymerase III subunit RPC1 Proteins 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 15
- 238000010168 coupling process Methods 0.000 description 13
- 238000005859 coupling reaction Methods 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
- H02J50/23—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- H04B5/26—
Abstract
The invention provides a self-adaptive matching system for magnetic resonance wireless charging, which comprises a transmitting Bluetooth communication and control circuit, a transmitting switch circuit, a voltage stabilizing circuit, a transmitting antenna, a radio frequency power amplifying circuit, a receiving Bluetooth communication and control circuit receiving antenna, a receiving switch circuit and a rectification voltage stabilizing circuit. The invention has simple structure, reasonable design and strong popularization and application value.
Description
Technical Field
The invention belongs to the field of wireless power transmission, and particularly relates to a self-adaptive matching system for magnetic resonance wireless charging.
Background
With the continuous development of electronic information technology and automation control technology, various home appliances, consumer electronics, mobile communication devices, etc. have been widely popularized, however, the conventional home appliances rely on the wired connection between the power line and the power socket to supply power, and the electronic devices using the built-in battery also need the wired connection between the charging wire and the power socket to charge, so we can see the wires for supplying power to the electronic devices everywhere. The wires not only occupy the activity space of people and limit the convenience of equipment use, but also create the hidden danger of safe electricity utilization. Therefore, with the increasing demand of people for portable devices and green energy systems that can be used completely wirelessly, research and application of wireless energy transmission technology is rapidly becoming the focus of academic and industrial circles at home and abroad. Currently, wireless charging technologies recognized in the industry are mainly classified into three types, one is the QI standard mainly pushed by the WPC alliance and is also called as a magnetic induction coupling technology, the other is a magnetic resonance coupling technology mainly pushed by the Airfuel alliance and is also an electromagnetic radiation type wireless energy transmission technology. Compared with a magnetic induction technology, the magnetic resonance coupling technology has obvious advantages in charging distance, spatial degree of freedom, one-to-many charging and power expansion; compared with the electromagnetic radiation type wireless energy transmission technology, the magnetic resonance coupling technology has more practical application value in the aspects of energy conversion efficiency, transmission power and electromagnetic safety. At present, this technique has been applied to equipment such as intelligence wearing, robot, AGV of sweeping floor gradually, gives the wireless function of charging of equipment to improve equipment's security and intelligent degree, promote user's use and experience. In addition, the application of the magnetic resonance coupling technology in the field of smart home will also subvert the use modes of traditional household appliances, mobile communication equipment and consumer electronics, a residence is used as a platform, all power lines in a home living area are thoroughly removed by utilizing a magnetic resonance wireless charging technology, a hidden wiring technology and an automatic control technology, wireless charging or continuous electric energy supply is carried out on the equipment, the safety, the convenience and the comfort of home are improved, and a high-efficiency, environment-friendly and energy-saving living environment is constructed.
Disclosure of Invention
In view of the above disadvantages in the prior art, the adaptive matching system for magnetic resonance wireless charging provided by the present invention solves the problems of an over-coupling phenomenon caused by too close distance and an under-coupling phenomenon caused by too far distance, and improves the transmission efficiency between the transceiver antennas.
In order to achieve the above purpose, the invention adopts the technical scheme that:
the scheme provides a self-adaptive matching system for magnetic resonance wireless charging, which comprises a magnetic resonance transmitting module and a magnetic resonance receiving module connected with the magnetic resonance transmitting module;
the magnetic resonance transmitting module comprises a transmitting Bluetooth communication and control circuit, a transmitting switch circuit, a voltage stabilizing circuit and a transmitting antenna which are respectively connected with the transmitting Bluetooth communication and control circuit, and a radio frequency power amplifying circuit which is respectively connected with the transmitting switch circuit and the voltage stabilizing circuit; the voltage stabilizing circuit is connected with the transmitting switch circuit, and the transmitting antenna is connected with the magnetic resonance receiving module;
the magnetic resonance receiving module comprises a receiving Bluetooth communication and control circuit, and a receiving antenna, a receiving switch circuit and a rectification voltage stabilizing circuit which are respectively connected with the receiving Bluetooth communication and control circuit, wherein the rectification voltage stabilizing circuit is connected with the receiving switch circuit, and the receiving antenna is connected with the transmitting antenna.
The invention has the beneficial effects that: the invention utilizes the self-adaptive matching scheme of magnetic resonance wireless electric energy transmission, namely, the Bluetooth communication and control circuit is utilized to collect information between receiving and transmitting, and the switching of the matching scheme of the receiving and transmitting antennas is carried out by using a plurality of matching schemes of the receiving and transmitting antennas and using the switch array circuit, so as to solve the problem that the transmission efficiency is poor due to the over-coupling phenomenon caused by too close distance and the under-coupling phenomenon caused by too far distance in the magnetic resonance wireless electric energy transmission process, and greatly improve the transmission efficiency of different distances.
Furthermore, the transmitting Bluetooth communication and control circuit comprises a Bluetooth chip N14, a voltage regulation chip N13 and a voltage regulation chip N12;
a DVDD2 pin of the chip N14 is connected to a DVDD1 pin, a 3.3V power supply, a ground capacitor C196 and a ground capacitor C195 of the chip N14, a GND pin of the chip N14 is grounded, an NC pin of the chip N14 is connected to the 3.3V power supply, a P1_0 pin of the chip N14 is connected to the emission switch circuit, a P1_1 pin of the chip N14 is connected to a cathode of the LED6, an anode of the LED6 is connected to one end of a resistor R79, the other end of the resistor R79 is connected to one end of a resistor R78 and the 3.3V power supply, the other end of the resistor R78 is connected to an anode of the LED5, a cathode of the LED5 is connected to a P14 _2 pin of the chip N14, a P72 _3 pin of the chip N14 is connected to the voltage regulator circuit, a P14 _7 pin of the chip N14 is connected to one end of the emission switch 14, and a P366 pin of the chip N14 is connected to the emission switch 14, the other end of the resistor R77 is connected with the voltage stabilizing circuit, the pin P0_7 of the chip N14 is connected with one end of a resistor R75, the other end of the resistor R75 is respectively connected with one end of a capacitor C189, one end of a resistor R74 and one end of a resistor R73, the other end of the capacitor C189 is connected with the other end of a resistor R74 and is grounded, the other end of the resistor R73 is connected with the voltage stabilizing circuit, the pin AVDD5 of the chip N14 is respectively connected with a 3.3V power supply and a grounded capacitor C183, the pin AVDD3 of the chip N14 is respectively connected with grounded capacitors C184 and C3.3V power supplies, the pin AVDD2 of the chip N14, the pin AVDD1 of the chip N14, the pin AVDD4 of the chip N14, a grounded capacitor C182, a grounded capacitor C181, a grounded capacitor C180, the pin AVDD6 of the chip N14, one end of a capacitor C185, one end of the capacitor C179 and the other end of the inductor L8 are connected with the other, and is grounded, the other end of the inductor L8 is connected to VCC, one end of the capacitor C178, one end of the capacitor C177, and one end of the chip N13, the other end of the capacitor C178 is connected to the other end of the capacitor C177, the GND pin of the chip N14, one end of the capacitor C170, and one end of the capacitor C169, the other end of the capacitor C170 is connected to the Vin pin of the chip N13, the other end of the capacitor C169, one end of the capacitor C167, the Vout pin of the chip N12, and the transmit switch circuit, the GND pin of the chip N12 is connected to one end of the capacitor C168 and the other end of the capacitor C167, the Vin pin of the chip N12 is connected to the other end of the capacitor C168 and the voltage regulator circuit, the RF _ P pin of the chip N14 is connected to one end of the capacitor C186, the other end of the capacitor C9 is connected to one end of the inductor L187, and the other end of the inductor L9 is grounded, the other end of the capacitor C187 is connected to one end of the inductor L10 and one end of the inductor L11, the other end of the inductor L11 is connected to one end of the grounded capacitor C188 and one end of the inductor L12, the other end of the inductor L12 is connected to the transmitting antenna, the RF _ N pin of the chip N14 is connected to one end of the capacitor C190, the other end of the capacitor C190 is connected to the grounded capacitor C191 and the other end of the inductor L10, the XOSC _ Q1 pin of the chip N14 is connected to one end of the grounded capacitor C192 and one end of the crystal oscillator Y2, the other end of the crystal oscillator Y2 is connected to the XOSC _ Q2 pin of the chip N14 and the grounded capacitor C193, the DCOUPL pin of the chip N14 is connected to the grounded capacitor C194, the R _ BIAS pin of the chip N14 is connected to the grounded resistor R76, and the pin of the chip N14 is grounded.
The beneficial effects of the further scheme are as follows: the transmitting Bluetooth communication and control circuit is used for detecting and collecting the voltage of the radio frequency power amplifying circuit and controlling the switch of the switch array circuit, and the self-adaptive matching scheme of the transmitting module is realized.
Still further, the launch switch circuit includes a launch match subcircuit and a launch switch array subcircuit;
the transmit switch array sub-circuit includes relay Y4, relay Y5, and relay Y6; the 5 th pin and the 4 th pin of the relay Y4 are respectively connected with a transmitting matching sub-circuit, the 6 th pin of the relay Y4 is connected with the radio frequency power amplifying circuit, the 8 th pin of the relay Y4 is connected with the cathode of a diode D4 and the collector of a triode Q6, the emitter of the triode Q6 is respectively connected with the anode of a diode D4, one end of a resistor R32 and one end of a capacitor C66, and is grounded, the base of the triode Q6 is respectively connected with the other end of the resistor R32, the other end of the capacitor C66 and one end of the resistor R31, the other end of the resistor R31 is connected with the P1_7 pin of the chip N14, the 1 st pin of the relay Y4 is connected with the Vin pin of the chip N13, the 3 rd pin of the relay Y4 is connected with the 3 rd pin of the relay Y6, and the 7 th pin of the relay Y4 is connected with the 6 th pin of the relay Y5; a 4 th pin, a 5 th pin, a 7 th pin and a 2 nd pin of the relay Y5 are respectively connected with the emission matching sub-circuit, a 1 st pin of the relay Y5 is connected with a Vin pin of the chip N13, a 3 rd pin of the relay Y5 is connected with a 4 th pin of the relay Y6, an 8 th pin of the relay Y5 is respectively connected with a cathode of a diode D3 and a collector of a triode Q7, a base of the triode Q7 is respectively connected with one end of a resistor R41, one end of a capacitor C96 and one end of a resistor R40, the other end of the resistor R40 is connected with a P1_0 pin of the chip N14, and an anode of the diode D3 is respectively connected with an emitter of the triode Q7, the other end of the resistor R41 and the other end of the capacitor C96 and is grounded; a 1 st pin of the relay Y6 is connected with a Vin pin of the chip N13, a 2 nd pin of the relay Y6 is connected with a collector of a triode Q9, an emitter of the triode Q9 is respectively connected with one end of a resistor R43 and one end of a capacitor C97, the base of the triode Q9 is respectively connected with the other end of the resistor R43, the other end of the capacitor C97 and one end of the resistor R42, and the other end of the resistor R42 is connected with a P1_0 pin of the chip N14;
the emission matching sub-circuit comprises a capacitor C56, a capacitor C57, a capacitor C58, a capacitor C59, a capacitor C60, a capacitor C61, a capacitor C62, a capacitor C63, a capacitor C64, a capacitor C65, a capacitor C98, a capacitor C92, a capacitor C93, a capacitor C94 and a capacitor C95; one end of a capacitor C56 is connected with one end of a capacitor C57, one end of a capacitor C58 and the 5 th pin of a relay Y4 respectively, the other end of the capacitor C56 is connected with the other end of a capacitor C57, the other end of a capacitor C58, one end of a capacitor C59, one end of a capacitor C60 and the 4 th pin of the relay Y4 respectively, and the other end of the capacitor C59 is connected with the other end of a capacitor C60 and the voltage stabilizing circuit respectively; one end of a capacitor C61 is connected with one end of a capacitor C62, one end of a capacitor C63 and the 5 th pin of a relay Y5 respectively, the other end of the capacitor C61 is connected with the other end of a capacitor C62, the other end of a capacitor C63, one end of a capacitor C64, one end of a capacitor C65 and the 4 th pin of a relay Y5 respectively, and the other end of the capacitor C64 is connected with the other end of a capacitor C65 and the voltage stabilizing circuit respectively; one end of a capacitor C98 is connected to one end of a capacitor C92, one end of a capacitor C93 and the 7 th pin of the relay Y5, the other end of a capacitor C98 is connected to the other end of a capacitor C92, the other end of a capacitor C93, one end of a capacitor C94, the 2 nd pin of the relay Y5 and one end of a capacitor C95, and the other end of a capacitor C95 is connected to the other end of a capacitor C94 and the voltage stabilizing circuit.
The beneficial effects of the further scheme are as follows: the transmitting switch circuit adopts the design mode of the switch array circuit, utilizes the switching of different transmitting matching circuits, improves the transmission efficiency of the transmitting and receiving antenna on different distances, and improves the overall efficiency of the system.
Still further, the number of transmit matching sub-circuits is at least 2.
Still further, the voltage stabilizing circuit comprises a conversion chip N1, an operational amplifier chip N2, an MOS transistor Q3 and a voltage stabilizing chip N3;
an IN pin of the chip N1 is respectively connected with a grounded capacitor C3, one end of a resistor R1, an anode of a polar capacitor C2 and one end of a magnetic bead L1, the other end of the magnetic bead L1 is respectively connected with an anode of a polar capacitor C1 and a Vin end of the chip N12, an EN pin of the chip N1 is respectively connected with the other end of a resistor R1 and one end of a resistor R1, an AAM pin of the chip N1 is connected with one end of the resistor R1, a VCC pin of the chip N1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is respectively connected with the other end of the resistor R1, a cathode of the polar capacitor C1, a GND pin of the chip N1, a grounded resistor RS1, one end of the resistor R1, an emitter of the triode Q1, one end of the resistor R1, one end of the RS1 and one end of the resistor FB 1 are respectively connected IN parallel with one end of the resistor R1, the resistor FB 1 and the resistor, the other end of the resistor R6 is connected to the other end of the resistor R8, the cathode of the diode D1 and one end of the resistor R7, the other end of the capacitor C6 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the other end of the resistor R7, the grounded capacitor C9, the grounded capacitor C8, one end of the inductor L8, one end of the resistor R8 and the source of the MOS transistor Q8, the other end of the inductor L8 is connected to the SW pin of the chip N8 and one end of the capacitor C8, the other end of the capacitor C8 is connected to one end of the resistor R8, the other end of the resistor R8 is connected to the BST pin of the chip N8, the collector of the transistor Q8 is connected to one end of the resistor R8 and the gate of the MOS transistor Q8, the drain of the MOS transistor Q8 is connected to the base of the radio frequency power amplifier circuit, and the resistor R8 and the other end of the transistor Q8 are connected to the transistor R8 respectively. The other end of the resistor R21 is connected with a P1_3 pin of the chip N14;
a VDD pin of the chip N2 is connected to one end of a capacitor C10, one end of a capacitor C11 and a Vout pin of the chip N3, the other end of a capacitor C10 is connected to the other end of a capacitor C11 and one end of a resistor R15, respectively, and is grounded, an OUTB pin of the chip N2 is connected to one end of a resistor R16 and the other end of a resistor R77, the other end of a resistor R16 is connected to the other end of a resistor R15 and an INB-pin of the chip N2, a chip INB + pin is connected to one end of a resistor R17, the other end of a resistor R17 is connected to one end of an inductor L3 and one end of a capacitor C14, the other end of an inductor L3 is connected to one end of a capacitor C13, one end of an inductor L13, and the other end of a capacitor C13, and the, the other end of the capacitor C12 is connected to the other end of the capacitor C13 and the other end of the capacitor C14, and is grounded, the VSS pin of the chip N2 is grounded, the INA + pin of the chip N2 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to one end of the capacitor C17 and the other end of the inductor L4, the other end of the capacitor C17 is connected to the other end of the capacitor C16 and the other end of the capacitor C15, the INA-pin of the chip N2 is connected to one end of the resistor R19 and the grounded resistor R20, and the other end of the resistor R19 is connected to the OUTA pin of the chip N2 and the anode of the diode D1;
the pin Vout of the chip N3 is further connected to one end of a capacitor C23 and one end of a capacitor C24, respectively, the other end of the capacitor C23 is connected to the other end of a capacitor C24, the GND pin of the chip N3, one end of a capacitor C22, and one end of a capacitor C21, respectively, and the other end of the capacitor C22 is connected to the other end of a capacitor C21, the Vin pin of the chip N3, and the other end of a resistor R73, respectively.
The beneficial effects of the further scheme are as follows: the invention can effectively provide stable voltage for the radio frequency power amplifying circuit by using the voltage stabilizing circuit, and ensures the stable work of the radio frequency power amplifying circuit.
Still further, the radio frequency power amplifying circuit comprises an integrated voltage stabilizing chip N4, a power amplifier tube N5, a drain electrode biasing sub-circuit, an output matching sub-circuit and a grid electrode biasing sub-circuit;
a Vin pin of the chip N4 is connected with one end of a capacitor C33, a drain of a MOS transistor Q3, one end of a capacitor C25 and the drain bias sub-circuit, the other end of a capacitor C25 is connected with the other end of a resistor RS2 and the gate bias sub-circuit, a GND pin of the chip N4 is connected with the other end of a resistor RS2, the other end of a capacitor C33 and one end of a capacitor C34, the other end of a capacitor C34 is connected with the Vout pin of the chip N4, the gate bias sub-circuit and one end of an inductor L5, the other end of an inductor L5 is connected with one end of a capacitor C35, one end of a capacitor C36 and a 4 th pin of a crystal oscillator Y1, the other end of a capacitor C35 is connected with the other end of a resistor RS2 and the other end of a capacitor C36, a 2 nd pin of a crystal oscillator Y1 is connected with the other end of a resistor RS2, a 3 rd pin of a crystal oscillator Y1 is connected with one end of a capacitor C38 and one end, the other end of the capacitor C37 is respectively connected with the other end of the capacitor C38 and the gate bias sub-circuit;
the drain bias sub-circuit comprises a polar capacitor C26, a capacitor C27, a capacitor C28, a capacitor C29, an inductor L6, a capacitor C30, a capacitor C31 and a capacitor C32; the positive electrode of a polar capacitor C26 is connected to the Vin pin of the chip N4, one end of a capacitor C27, one end of a capacitor C28, one end of a capacitor C29 and one end of an inductor L6, the negative electrode of a polar capacitor C26 is connected to the other end of a capacitor C27, the other end of a capacitor C28, the other end of a capacitor C29 and the other end of a resistor RS2, the other end of an inductor L6 is connected to one end of a capacitor C30, one end of a capacitor C31, one end of a capacitor C32, the drain of a power amplifier tube N5 and the output matching sub-circuit, and the other end of a capacitor C30 is connected to the other end of a resistor RS2, the other end of a capacitor C31 and the other end of a capacitor C32;
the gate bias sub-circuit comprises a capacitor C39, a resistor R25, a resistor R26, a resistor R27, a resistor R28 and a capacitor C40; one end of a capacitor C39 is connected to the Vout pin of the chip N4 and one end of a resistor R25, the other end of the resistor R25 is connected to one end of a resistor R26, the other end of a resistor R26 is connected to one end of a capacitor C40, one end of a resistor R27 and one end of a resistor R28, the other end of a capacitor C40 is connected to the other end of a capacitor C39, the other end of a resistor R27, the source of the power amplifier N5, the output matching sub-circuit and the other end of a capacitor C25, and the other end of a resistor R28 is connected to the other end of a capacitor C37 and the gate of the power amplifier N5;
the output matching sub-circuit comprises a capacitor C41, a capacitor C42, a capacitor C43, a capacitor C44, an inductor L7, a capacitor C45, a capacitor C46, a capacitor C47 and a capacitor C48; one end of a capacitor C41 is connected to the drain of the power amplifier N5, one end of a capacitor C42 and one end of an inductor L6, the other end of a capacitor C41 is connected to the other end of a capacitor C42, one end of an inductor L7, one end of a capacitor C43 and one end of a capacitor C44, the other end of an inductor L7 is connected to the other end of a capacitor C43, the other end of a capacitor C44, one end of a capacitor C45, one end of a capacitor C46, one end of a capacitor C47 and one end of a capacitor C48, the other end of a capacitor C48 is connected to the 6 th pin of the relay Y4, and the other end of a capacitor C45 is connected to the other end of a capacitor C46, the other end of a capacitor C47 and the source of the power amplifier N5.
The beneficial effects of the further scheme are as follows: the radio frequency power amplifying circuit used by the invention adopts a matching scheme of lumped elements, and can provide effective transmitting power for the transmitting antenna.
Still further, the receiving bluetooth communication and control circuit comprises a bluetooth chip N15 and a voltage stabilizing chip N11;
the DVDD2 pin of the chip N15 is respectively connected with a grounding capacitor C155, a grounding capacitor C156, a DVDD1 pin of the chip N15, a 3.3BV power supply, an AVDD5 pin of the chip N15, a grounding capacitor C154, a grounding capacitor C153, an AVDD3 pin of the chip N15, a grounding capacitor C151, a grounding capacitor C152, an AVDD2 pin of the chip N15, an AVDD1 pin of the chip N15, an AVDD4 pin of the chip N15, an AVDD6 pin of the chip N15, a grounding capacitor C150, a grounding capacitor C149 and one end of an inductor L18, the other end of the inductor L18 is respectively connected with a power supply VCC, one end of a capacitor C148, one end of a capacitor C147 and a pin Vout of the chip N11, the Vin pin of the chip N5 is respectively connected with one end of a 5V power supply and one end of a capacitor C146, the other end of the capacitor C147 is respectively connected with the other end of the capacitor C147, the chip N11 pin, the GND pin of the chip N11 and the grounding capacitor, an NC pin of the chip N15 is connected to a 3.3BV power supply, a P1_0 pin of the chip N15 is connected to one end of a resistor R53, the other end of the resistor R53 is connected to one end of a resistor R54, one end of a capacitor C114 and a base of a transistor Q6, an emitter of a transistor Q6 is connected to the other end of a resistor R54, the other end of the capacitor C114 and an anode of a diode D5, respectively, and grounded, a cathode of the diode D5 is connected to a collector of the transistor Q6 and a receiving switch circuit, a P1_1 pin of the chip N15 is connected to the receiving switch circuit, a P1_3 pin of the chip N15 is connected to one end of a resistor R68, the other end of the resistor R68 is connected to an anode of a light emitting diode LED3, a P1_4 pin of the chip N637 is connected to one end of a resistor R69, the other end of the resistor R69 is connected to an anode of the light emitting diode 69, and a cathode of the light emitting diode 69 is connected to a, and grounding, pin P0_0 of the chip N15 is connected with one end of a grounding capacitor C166, a grounding capacitor C165, a grounding resistor R71 and a resistor R70, respectively, the other end of the resistor R70 is connected with a 5.8V power supply, pin P0_3 of the chip N15 is connected with one end of a resistor R67, the other end of the resistor R67 is connected with the rectifying and voltage stabilizing circuit, pin P0_7 of the chip N15 is connected with the rectifying and voltage stabilizing circuit, pin REST _ N of the chip N15 is connected with one end of a resistor R66, the other end of the resistor R66 is connected with a 3.3BV power supply, pin GND of the chip N15 is grounded, pin R _ BIAS of the chip N15 is connected with pin R65 of the grounding resistor, pin DCOUPL of the chip N15 is connected with pin C164 of the grounding capacitor, pin xssc _ Q2 of the chip N15 is connected with pin C163 of the grounding capacitor C163 and pin 1 of the oscillator Y9, and pin 9 of the oscillator crystal Y9 is connected with the third pin 9 of the oscillator, and the 3 rd pin of the crystal oscillator Y9 is connected to a ground capacitor 162 and an XOSC _ Q1 pin of the chip N15, respectively, the RF _ N pin of the chip N15 is connected to one end of a capacitor C160, the other end of the capacitor C160 is connected to one end of an inductor L15 and a ground capacitor C161, respectively, the other end of an inductor L15 is connected to one end of an inductor L16 and one end of a capacitor C158, the other end of the capacitor C158 is connected to one end of a capacitor C157 and one end of an inductor L14, respectively, the other end of the inductor L14 is grounded, the other end of a capacitor C157 is connected to the RF _ P pin of the chip N15, the other end of the inductor L16 is connected to one end of an inductor L17 and one end of a ground capacitor C159, and the other end of the inductor L17 is connected to the receiving antenna.
The beneficial effects of the further scheme are as follows: the receiving Bluetooth communication and control circuit is used for detecting and collecting the rectified voltage of the rectifying and voltage stabilizing circuit and controlling the switch of the switch array circuit, so that the self-adaptive matching scheme of the receiving module is realized.
Still further, the receive switch circuit includes a receive switch array sub-circuit and a receive matching sub-circuit;
the receive switch array sub-circuit includes relay Y7 and relay Y8; a 1 st pin of the relay Y7 is connected with a 12BV power supply, a 2 nd pin of the relay Y7 is respectively connected with one end of a grounding capacitor C110, a grounding capacitor C109 and a capacitor C107 and one end of a capacitor C108, the other end of the capacitor C107 is respectively connected with the other end of the capacitor C108 and a 7 th pin of the relay Y7, a 3 rd pin of the relay Y7 is respectively connected with one end of a receiving antenna and a 6 th pin of the relay Y8, a 4 th pin and a 5 th pin of the relay Y7 are respectively connected with the receiving matching sub-circuit, a 6 th pin of the relay Y7 is connected with a 2 nd pin of the relay Y8, and an 8 th pin of the relay Y7 is connected with a collector of a triode Q6; a 5 th pin and a 4 th pin of the relay Y8 are respectively connected with the receiving matching sub-circuit, a 3 rd pin of the relay Y8 is connected with the rectification voltage stabilizing circuit, an 8 th pin of the relay Y8 is connected with a 12BV power supply, a 1 st pin of the relay Y8 is respectively connected with a collector of a triode Q7 and a cathode of a diode D6, a base of a triode Q7 is respectively connected with one end of a resistor R52, one end of a capacitor C113 and one end of a resistor R51, the other end of the resistor R51 is connected with a P1_1 pin of the chip N15, and the other end of the capacitor C113 is respectively connected with the other end of the resistor R52, an emitter of the triode Q7 and an anode of the diode D4 and is grounded;
the receiving matching sub-circuit comprises a grounding capacitor C102, a grounding capacitor C101, a capacitor C99, a capacitor C100, a grounding capacitor C105, a grounding capacitor C106, a capacitor C103 and a capacitor C104; one end of a capacitor C99 is respectively connected with one end of a capacitor C100, a grounding capacitor C101, a grounding capacitor C102 and a 5 th pin of a relay Y8, and the other end of a capacitor C99 is respectively connected with the other end of the capacitor C100 and a 4 th pin of the relay Y8; one end of the capacitor C103 is connected to the ground capacitor C105, the ground capacitor C106, one end of the capacitor C104, and the 4 th pin of the relay Y7, respectively, and the other end of the capacitor C103 is connected to the other end of the capacitor C104, and the 5 th pin of the relay Y7, respectively.
The beneficial effects of the further scheme are as follows: the receiving switch circuit adopts the design mode of a switch array circuit, and improves the transmission efficiency of the receiving and transmitting antenna on different distances by switching different receiving matching circuits, thereby improving the overall efficiency of the system.
Still further, the number of said receiving matching sub-circuits is at least 2.
Still further, the rectification voltage stabilizing circuit comprises a rectifier sub-circuit, a filter sub-circuit and a voltage stabilizing sub-circuit;
the rectifying sub-circuit comprises a capacitor C112, a capacitor C111, a diode D7, a diode D8, a diode D9 and a diode D10; one end of a capacitor C112 is respectively connected with the cathode of a diode D7, the cathode of a diode D8, one end of a capacitor C111 and the filter sub-circuit, the other end of the capacitor C112 is respectively connected with the other end of the capacitor C111, the anode of a diode D9, the anode of a diode D10 and the voltage-stabilizing sub-circuit, the anode of a diode D7 is respectively connected with the cathode of a diode D9 and the 3 rd pin of a relay Y8, and the anode of a diode D8 is respectively connected with the cathode of the diode D10 and grounded;
the filter sub-circuit comprises a grounded capacitor C118, a grounded capacitor C119, a grounded capacitor C120, a grounded capacitor C121, a grounded capacitor C122, a grounded capacitor C123, a grounded capacitor C124, a grounded capacitor C125, a grounded capacitor C126, a grounded capacitor C127 and a grounded capacitor C128; the grounding capacitor C118 is respectively connected with one end of the capacitor C112, the grounding capacitor C119, the grounding capacitor C120, the grounding capacitor C121, the grounding capacitor C122, the grounding capacitor C123, the grounding capacitor C124, the grounding capacitor C125, the grounding capacitor C126, the grounding capacitor C127, the grounding capacitor C128, the other end of the resistor R67 and the voltage-stabilizing electronic circuit;
the voltage stabilizing sub-circuit comprises a power supply conversion chip N8 and a triode N12; a Vin pin of the chip N8 is connected with a grounded capacitor C118, a COMP pin of the chip N8 is connected with one end of a resistor R55 and one end of a capacitor C134, the other end of the resistor R55 is connected with one end of the capacitor C133, the other end of the capacitor C133 is connected with the other end of a capacitor C112, the other end of the capacitor C134, one end of a resistor R56, a GND pin of the chip N8, one end of a resistor R58 and one end of a resistor RS4, the other end of the resistor RS4 is connected with a J4 interface of a rectifying and voltage-stabilizing output voltage end, the other end of a resistor R56 is connected with an RT/CLK pin of the chip N8, an FB pin of the chip N8 is connected with the other end of the resistor R58 and one end of a resistor R57, the other end of the resistor R57 is connected with a grounded capacitor C136, a grounded capacitor C137, one end of an inductor L13, one end of a resistor R45 and a source of the MOS transistor N9, the other end of the resistor R5 is connected with a collector nos. and a, the drain electrode of the MOS transistor N9 is respectively connected with a J3 interface of a 5.8V power supply and a rectifying and voltage-stabilizing output voltage end and one end of a capacitor C138, the other end of the capacitor C138 is connected with an emitter electrode of a triode N12 and is grounded, the base electrode of the triode N12 is connected with one end of a resistor R50, the other end of the resistor R50 is connected with a P0_7 pin of a chip N15, the other end of an inductor L13 is respectively connected with the negative electrode of a diode D11, one end of a capacitor C135 and an SW pin of the chip N8, the positive electrode of the diode D11 is grounded, and the other end of the capacitor C135 is connected with a BOOT pin of the chip N8.
The beneficial effects of the further scheme are as follows: in the rectification voltage stabilizing circuit, a bridge rectifier sub-circuit consists of four rectifier diodes to form a bridge rectifier, and high-frequency alternating current received by a magnetic resonance receiving antenna is converted into direct current; the voltage stabilizing sub-circuit consists of a voltage reduction integrated chip N8 and a feedback circuit, the direct current after bridge rectification is sent to the voltage reduction integrated chip N8, and the required voltage value can be set by adjusting the value of a feedback pin; the filtering sub-circuit enables the output voltage to be more stable and clean.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a system configuration diagram of the present invention.
Fig. 3 is a circuit diagram of the transmitting bluetooth communication and control circuit of the present invention.
Fig. 4 is a circuit diagram of a transmission switch in the present invention.
FIG. 5 is a diagram of a voltage regulator circuit according to the present invention.
Fig. 6 is a diagram of an rf power amplifier circuit according to the present invention.
FIG. 7 is a circuit diagram of a receiving Bluetooth communication and control circuit of the present invention.
Fig. 8 is a circuit connection diagram of the middle receiving switch circuit and the rectifying voltage stabilizing circuit.
The magnetic resonance power amplifier comprises a 1-magnetic resonance transmitting module, a 2-magnetic resonance receiving module, a 3-transmitting Bluetooth communication and control circuit, a 4-transmitting switch circuit, a 5-voltage stabilizing circuit, a 6-radio frequency power amplifying circuit, a 7-receiving Bluetooth communication and control circuit, an 8-receiving switch circuit and a 9-rectifying and voltage stabilizing circuit.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Examples
The invention discloses a self-adaptive matching system for magnetic resonance wireless charging, which utilizes a transceiving Bluetooth communication and control circuit to collect information between transceiving, and utilizes a switch array circuit to switch the transceiving antenna matching scheme by using a plurality of transceiving antenna matching schemes, thereby solving the over-coupling phenomenon caused by too close distance and the under-coupling phenomenon caused by too far distance, and further improving the transmission efficiency between transceiving antennas, as shown in figures 1-2, and comprises a magnetic resonance transmitting module 1 and a magnetic resonance receiving module 2 connected with the magnetic resonance transmitting module 1; the magnetic resonance transmitting module 1 comprises a transmitting Bluetooth communication and control circuit 3, a transmitting switch circuit 4, a voltage stabilizing circuit 5 and a transmitting antenna which are respectively connected with the transmitting Bluetooth communication and control circuit 3, and a radio frequency power amplifying circuit 6 which is respectively connected with the transmitting switch circuit 4 and the voltage stabilizing circuit 5; the voltage stabilizing circuit 5 is connected with the transmitting switch circuit 4, and the transmitting antenna is connected with the magnetic resonance receiving module 2; the magnetic resonance receiving module 2 comprises a receiving Bluetooth communication and control circuit 7, and a receiving antenna, a receiving switch circuit 8 and a rectification voltage-stabilizing circuit 9 which are respectively connected with the receiving Bluetooth communication and control circuit 7, wherein the rectification voltage-stabilizing circuit 9 is connected with the receiving switch circuit 8, and the receiving antenna is connected with the transmitting antenna.
As shown in fig. 3, the transmitting bluetooth communication and control circuit 3 includes a bluetooth chip N14, a voltage regulator chip N13 and a voltage regulator chip N12; a DVDD2 pin of the chip N14 is connected to a DVDD1 pin, a 3.3V power supply, a ground capacitor C196 and a ground capacitor C195 of the chip N14, a GND pin of the chip N14 is grounded, an NC pin of the chip N14 is connected to the 3.3V power supply, a P1_0 pin of the chip N14 is connected to the emission switch circuit 4, a P1_1 pin of the chip N14 is connected to a cathode of the LED6, an anode of the LED6 is connected to one end of a resistor R79, the other end of the resistor R79 is connected to one end of a resistor R78 and the 3.3V power supply, the other end of the resistor R78 is connected to an anode of the LED5, a cathode of the LED5 is connected to a P14 _2 pin of the chip N14, a P14 _3 pin of the chip N14 is connected to the voltage regulator 365, a P367 pin of the chip N14 is connected to the emission switch circuit 14, and a P366 pin of the emission switch N14 is connected to the chip 14, the other end of the resistor R77 is connected with the voltage stabilizing circuit 5, the pin P0_7 of the chip N14 is connected with one end of a resistor R75, the other end of the resistor R75 is respectively connected with one end of a capacitor C189, one end of a resistor R74 and one end of a resistor R73, the other end of the capacitor C189 is connected with the other end of a resistor R74 and is grounded, the other end of the resistor R73 is connected with the voltage stabilizing circuit 5, the AVDD5 pin of the chip N14 is respectively connected with a 3.3V power supply and a grounded capacitor C183, the AVDD3 pin of the chip N14 is respectively connected with grounded capacitors C184 and C3.3V power supplies, the AVDD2 pin of the chip N14, the AVDD1 pin of the chip N14, the AVDD4 pin of the chip N14, a grounded capacitor C182, a grounded capacitor C181, a grounded capacitor C180, the AVDD6 pin of the chip N14, one end of the capacitor C185, one end of the capacitor C179 and the other end of the inductor L8 are connected with the capacitor, and is grounded, the other end of the inductor L8 is connected to VCC, one end of the capacitor C178, one end of the capacitor C177, and one end of the chip N13, the other end of the capacitor C178 is connected to the other end of the capacitor C177, the GND pin of the chip N14, one end of the capacitor C170, and one end of the capacitor C169, the other end of the capacitor C170 is connected to the Vin pin of the chip N13, the other end of the capacitor C169, one end of the capacitor C167, the Vout pin of the chip N12, and the transmit switch circuit 4, the GND pin of the chip N12 is connected to one end of the capacitor C168 and the other end of the capacitor C167, the Vin pin of the chip N12 is connected to the other end of the capacitor C168 and the voltage regulator circuit 5, the RF _ P pin of the chip N14 is connected to one end of the capacitor C186, the other end of the capacitor C186 is connected to one end of the inductor L9 and one end of the capacitor C187, and the other end, the other end of the capacitor C187 is connected to one end of the inductor L10 and one end of the inductor L11, the other end of the inductor L11 is connected to one end of the grounded capacitor C188 and one end of the inductor L12, the other end of the inductor L12 is connected to the transmitting antenna, the RF _ N pin of the chip N14 is connected to one end of the capacitor C190, the other end of the capacitor C190 is connected to the grounded capacitor C191 and the other end of the inductor L10, the XOSC _ Q1 pin of the chip N14 is connected to one end of the grounded capacitor C192 and one end of the crystal oscillator Y2, the other end of the crystal oscillator Y2 is connected to the XOSC _ Q2 pin of the chip N14 and the grounded capacitor C193, the DCOUPL pin of the chip N14 is connected to the grounded capacitor C194, the R _ BIAS pin of the chip N14 is connected to the grounded resistor R76, and the pin of the chip N14 is grounded.
As shown in fig. 4, the launch switch circuit 4 includes a launch matching subcircuit and a launch switch array subcircuit; the transmit switch array sub-circuit includes relay Y4, relay Y5, and relay Y6; the 5 th pin and the 4 th pin of the relay Y4 are respectively connected with a transmitting matching sub-circuit, the 6 th pin of the relay Y4 is connected with the radio frequency power amplifying circuit 6, the 8 th pin of the relay Y4 is connected with the cathode of a diode D4 and the collector of a triode Q6, the emitter of the triode Q6 is respectively connected with the anode of a diode D4, one end of a resistor R32 and one end of a capacitor C66, and is grounded, the base of the triode Q6 is respectively connected with the other end of the resistor R32, the other end of the capacitor C66 and one end of the resistor R31, the other end of the resistor R31 is connected with the P1_7 pin of the chip N14, the 1 st pin of the relay Y4 is connected with the Vin pin of the chip N13, the 3 rd pin of the relay Y4 is connected with the 3 rd pin of the relay Y6, and the 7 th pin of the relay Y4 is connected with the 6 th pin of the relay Y5; a 4 th pin, a 5 th pin, a 7 th pin and a 2 nd pin of the relay Y5 are respectively connected with the emission matching sub-circuit, a 1 st pin of the relay Y5 is connected with a Vin pin of the chip N13, a 3 rd pin of the relay Y5 is connected with a 4 th pin of the relay Y6, an 8 th pin of the relay Y5 is respectively connected with a cathode of a diode D3 and a collector of a triode Q7, a base of the triode Q7 is respectively connected with one end of a resistor R41, one end of a capacitor C96 and one end of a resistor R40, the other end of the resistor R40 is connected with a P1_0 pin of the chip N14, and an anode of the diode D3 is respectively connected with an emitter of the triode Q7, the other end of the resistor R41 and the other end of the capacitor C96 and is grounded; a 1 st pin of the relay Y6 is connected with a Vin pin of the chip N13, a 2 nd pin of the relay Y6 is connected with a collector of a triode Q9, an emitter of the triode Q9 is respectively connected with one end of a resistor R43 and one end of a capacitor C97, the base of the triode Q9 is respectively connected with the other end of the resistor R43, the other end of the capacitor C97 and one end of the resistor R42, and the other end of the resistor R42 is connected with a P1_0 pin of the chip N14;
the emission matching sub-circuit comprises a capacitor C56, a capacitor C57, a capacitor C58, a capacitor C59, a capacitor C60, a capacitor C61, a capacitor C62, a capacitor C63, a capacitor C64, a capacitor C65, a capacitor C98, a capacitor C92, a capacitor C93, a capacitor C94 and a capacitor C95; one end of a capacitor C56 is connected to one end of a capacitor C57, one end of a capacitor C58 and the 5 th pin of the relay Y4, the other end of a capacitor C56 is connected to the other end of a capacitor C57, the other end of a capacitor C58, one end of a capacitor C59, one end of a capacitor C60 and the 4 th pin of the relay Y4, and the other end of a capacitor C59 is connected to the other end of a capacitor C60 and the voltage regulator circuit 5; one end of a capacitor C61 is connected with one end of a capacitor C62, one end of a capacitor C63 and the 5 th pin of a relay Y5 respectively, the other end of the capacitor C61 is connected with the other end of a capacitor C62, the other end of a capacitor C63, one end of a capacitor C64, one end of a capacitor C65 and the 4 th pin of a relay Y5 respectively, and the other end of the capacitor C64 is connected with the other end of a capacitor C65 and the voltage stabilizing circuit 5 respectively; one end of a capacitor C98 is respectively connected with one end of a capacitor C92, one end of a capacitor C93 and the 7 th pin of a relay Y5, the other end of the capacitor C98 is respectively connected with the other end of a capacitor C92, the other end of a capacitor C93, one end of a capacitor C94, the 2 nd pin of the relay Y5 and one end of a capacitor C95, the other end of the capacitor C95 is respectively connected with the other end of a capacitor C94 and the voltage stabilizing circuit 5, and the number of the transmitting matching sub-circuits is at least 2.
As shown in fig. 5, the voltage regulator circuit 5 includes a conversion chip N1, an operational amplifier chip N2, a MOS transistor Q3, and a voltage regulator chip N3; an IN pin of the chip N1 is respectively connected with a grounded capacitor C3, one end of a resistor R1, an anode of a polar capacitor C2 and one end of a magnetic bead L1, the other end of the magnetic bead L1 is respectively connected with an anode of a polar capacitor C1 and a Vin end of the chip N12, an EN pin of the chip N1 is respectively connected with the other end of a resistor R1 and one end of a resistor R1, an AAM pin of the chip N1 is connected with one end of the resistor R1, a VCC pin of the chip N1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is respectively connected with the other end of the resistor R1, a cathode of the polar capacitor C1, a GND pin of the chip N1, a grounded resistor RS1, one end of the resistor R1, an emitter of the triode Q1, one end of the resistor R1, one end of the RS1 and one end of the resistor FB 1 are respectively connected IN parallel with one end of the resistor R1, the resistor FB 1 and the resistor, the other end of the resistor R6 is connected to the other end of the resistor R8, the cathode of the diode D1 and one end of the resistor R7, the other end of the capacitor C6 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the other end of the resistor R7, the grounded capacitor C9, the grounded capacitor C8, one end of the inductor L8, one end of the resistor R8 and the source of the MOS transistor Q8, the other end of the inductor L8 is connected to the SW pin of the chip N8 and one end of the capacitor C8, the other end of the capacitor C8 is connected to one end of the resistor R8, the other end of the resistor R8 is connected to the BST pin of the chip N8, the collector of the transistor Q8 is connected to one end of the resistor R8 and the gate of the MOS transistor Q8, the drain of the MOS transistor Q8 is connected to the radio frequency power amplifier circuit Q366, the base of the transistor Q8 and the other end of the resistor R8 are connected to one end of the transistor R8 and, the other end of the resistor R21 is connected with a P1_3 pin of the chip N14;
a VDD pin of the chip N2 is connected to one end of a capacitor C10, one end of a capacitor C11 and a Vout pin of the chip N3, the other end of a capacitor C10 is connected to the other end of a capacitor C11 and one end of a resistor R15, respectively, and is grounded, an OUTB pin of the chip N2 is connected to one end of a resistor R16 and the other end of a resistor R77, the other end of a resistor R16 is connected to the other end of a resistor R15 and an INB-pin of the chip N2, a chip INB + pin is connected to one end of a resistor R17, the other end of a resistor R17 is connected to one end of an inductor L3 and one end of a capacitor C14, the other end of an inductor L3 is connected to one end of a capacitor C13, one end of an inductor L13, the other end of a resistor RS 13, and the other end of a capacitor C13, and the rf power amplification circuit RS 366, the other end of the capacitor C12 is connected to the other end of the capacitor C13 and the other end of the capacitor C14, and is grounded, the VSS pin of the chip N2 is grounded, the INA + pin of the chip N2 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to one end of the capacitor C17 and the other end of the inductor L4, the other end of the capacitor C17 is connected to the other end of the capacitor C16 and the other end of the capacitor C15, the INA-pin of the chip N2 is connected to one end of the resistor R19 and the grounded resistor R20, and the other end of the resistor R19 is connected to the OUTA pin of the chip N2 and the anode of the diode D1;
the pin Vout of the chip N3 is further connected to one end of a capacitor C23 and one end of a capacitor C24, respectively, the other end of the capacitor C23 is connected to the other end of a capacitor C24, the GND pin of the chip N3, one end of a capacitor C22, and one end of a capacitor C21, respectively, and the other end of the capacitor C22 is connected to the other end of a capacitor C21, the Vin pin of the chip N3, and the other end of a resistor R73, respectively.
As shown in fig. 6, the rf power amplifier circuit 6 includes an integrated regulator chip N4, a power amplifier tube N5, a drain bias sub-circuit, an output matching sub-circuit, and a gate bias sub-circuit;
a Vin pin of the chip N4 is connected with one end of a capacitor C33, a drain of a MOS transistor Q3, one end of a capacitor C25 and the drain bias sub-circuit, the other end of a capacitor C25 is connected with the other end of a resistor RS2 and the gate bias sub-circuit, a GND pin of the chip N4 is connected with the other end of a resistor RS2, the other end of a capacitor C33 and one end of a capacitor C34, the other end of a capacitor C34 is connected with the Vout pin of the chip N4, the gate bias sub-circuit and one end of an inductor L5, the other end of an inductor L5 is connected with one end of a capacitor C35, one end of a capacitor C36 and a 4 th pin of a crystal oscillator Y1, the other end of a capacitor C35 is connected with the other end of a resistor RS2 and the other end of a capacitor C36, a 2 nd pin of a crystal oscillator Y1 is connected with the other end of a resistor RS2, a 3 rd pin of a crystal oscillator Y1 is connected with one end of a capacitor C38 and one end, the other end of the capacitor C37 is respectively connected with the other end of the capacitor C38 and the gate bias sub-circuit;
the drain bias sub-circuit comprises a polar capacitor C26, a capacitor C27, a capacitor C28, a capacitor C29, an inductor L6, a capacitor C30, a capacitor C31 and a capacitor C32; the positive electrode of a polar capacitor C26 is connected to the Vin pin of the chip N4, one end of a capacitor C27, one end of a capacitor C28, one end of a capacitor C29 and one end of an inductor L6, the negative electrode of a polar capacitor C26 is connected to the other end of a capacitor C27, the other end of a capacitor C28, the other end of a capacitor C29 and the other end of a resistor RS2, the other end of an inductor L6 is connected to one end of a capacitor C30, one end of a capacitor C31, one end of a capacitor C32, the drain of a power amplifier tube N5 and the output matching sub-circuit, and the other end of a capacitor C30 is connected to the other end of a resistor RS2, the other end of a capacitor C31 and the other end of a capacitor C32;
the gate bias sub-circuit comprises a capacitor C39, a resistor R25, a resistor R26, a resistor R27, a resistor R28 and a capacitor C40; one end of a capacitor C39 is connected to the Vout pin of the chip N4 and one end of a resistor R25, the other end of the resistor R25 is connected to one end of a resistor R26, the other end of a resistor R26 is connected to one end of a capacitor C40, one end of a resistor R27 and one end of a resistor R28, the other end of a capacitor C40 is connected to the other end of a capacitor C39, the other end of a resistor R27, the source of the power amplifier N5, the output matching sub-circuit and the other end of a capacitor C25, and the other end of a resistor R28 is connected to the other end of a capacitor C37 and the gate of the power amplifier N5;
the output matching sub-circuit comprises a capacitor C41, a capacitor C42, a capacitor C43, a capacitor C44, an inductor L7, a capacitor C45, a capacitor C46, a capacitor C47 and a capacitor C48; one end of a capacitor C41 is connected to the drain of the power amplifier N5, one end of a capacitor C42 and one end of an inductor L6, the other end of a capacitor C41 is connected to the other end of a capacitor C42, one end of an inductor L7, one end of a capacitor C43 and one end of a capacitor C44, the other end of an inductor L7 is connected to the other end of a capacitor C43, the other end of a capacitor C44, one end of a capacitor C45, one end of a capacitor C46, one end of a capacitor C47 and one end of a capacitor C48, the other end of a capacitor C48 is connected to the 6 th pin of the relay Y4, and the other end of a capacitor C45 is connected to the other end of a capacitor C46, the other end of a capacitor C47 and the source of the power amplifier N5.
As shown in fig. 7, the receiving bluetooth communication and control circuit 7 includes a bluetooth chip N15 and a voltage regulator chip N11; the DVDD2 pin of the chip N15 is respectively connected with a grounding capacitor C155, a grounding capacitor C156, a DVDD1 pin of the chip N15, a 3.3BV power supply, an AVDD5 pin of the chip N15, a grounding capacitor C154, a grounding capacitor C153, an AVDD3 pin of the chip N15, a grounding capacitor C151, a grounding capacitor C152, an AVDD2 pin of the chip N15, an AVDD1 pin of the chip N15, an AVDD4 pin of the chip N15, an AVDD6 pin of the chip N15, a grounding capacitor C150, a grounding capacitor C149 and one end of an inductor L18, the other end of the inductor L18 is respectively connected with a power supply VCC, one end of a capacitor C148, one end of a capacitor C147 and a pin Vout of the chip N11, the Vin pin of the chip N5 is respectively connected with one end of a 5V power supply and one end of a capacitor C146, the other end of the capacitor C147 is respectively connected with the other end of the capacitor C147, the chip N11 pin, the GND pin of the chip N11 and the grounding capacitor, an NC pin of the chip N15 is connected with a 3.3BV power supply, a P1_0 pin of the chip N15 is connected with one end of a resistor R53, the other end of the resistor R53 is respectively connected with one end of a resistor R54, one end of a capacitor C114 and a base of a triode Q6, an emitter of a triode Q6 is respectively connected with the other end of a resistor R54, the other end of the capacitor C114 and an anode of a diode D5, and is grounded, a cathode of the diode D5 is respectively connected with a collector of a triode Q6 and a receiving switch circuit 8, a P1_1 pin of the chip N63 158 is connected with the receiving switch circuit 8, a P1_3 pin of the chip N2 is connected with one end of a resistor R68, the other end of the resistor R68 is connected with an anode of a light emitting diode LED3, a P1_4 pin of the chip N36 15 is connected with one end of a resistor R69, the other end of the resistor R69 is connected with an anode of the light emitting diode R69, and a cathode of the light emitting diode 36, and grounded, the pin P0_0 of the chip N15 is connected with one end of a grounded capacitor C166, a grounded capacitor C165, a grounded resistor R71 and a resistor R70, the other end of the resistor R70 is connected with a 5.8V power supply, the pin P0_3 of the chip N15 is connected with one end of a resistor R67, the other end of the resistor R67 is connected with the rectifying and voltage stabilizing circuit 9, the pin P0_7 of the chip N15 is connected with the rectifying and voltage stabilizing circuit 9, the pin REST _ N of the chip N15 is connected with one end of a resistor R66, the other end of the resistor R66 is connected with a 3.3BV power supply, the pin GND of the chip N15 is grounded, the pin R _ BIAS of the chip N15 is connected with a grounded resistor R5, the pin DCOUPL of the chip N15 is connected with a grounded capacitor C164, the pin xsc 2 of the chip N15 is connected with a grounded capacitor C163 and a pin Y9, a third pin 5734 of the crystal Y599, and the 3 rd pin of the crystal oscillator Y9 is connected to a ground capacitor 162 and an XOSC _ Q1 pin of the chip N15, respectively, the RF _ N pin of the chip N15 is connected to one end of a capacitor C160, the other end of the capacitor C160 is connected to one end of an inductor L15 and a ground capacitor C161, respectively, the other end of an inductor L15 is connected to one end of an inductor L16 and one end of a capacitor C158, the other end of the capacitor C158 is connected to one end of a capacitor C157 and one end of an inductor L14, respectively, the other end of the inductor L14 is grounded, the other end of a capacitor C157 is connected to the RF _ P pin of the chip N15, the other end of the inductor L16 is connected to one end of an inductor L17 and one end of a ground capacitor C159, and the other end of the inductor L17 is connected to the receiving antenna.
As shown in fig. 8, the reception switch circuit 8 includes a reception switch array sub-circuit and a reception matching sub-circuit; the receive switch array sub-circuit includes relay Y7 and relay Y8; a 1 st pin of the relay Y7 is connected with a 12BV power supply, a 2 nd pin of the relay Y7 is respectively connected with one end of a grounding capacitor C110, a grounding capacitor C109 and a capacitor C107 and one end of a capacitor C108, the other end of the capacitor C107 is respectively connected with the other end of the capacitor C108 and a 7 th pin of the relay Y7, a 3 rd pin of the relay Y7 is respectively connected with one end of a receiving antenna and a 6 th pin of the relay Y8, a 4 th pin and a 5 th pin of the relay Y7 are respectively connected with the receiving matching sub-circuit, a 6 th pin of the relay Y7 is connected with a 2 nd pin of the relay Y8, and an 8 th pin of the relay Y7 is connected with a collector of a triode Q6; a 5 th pin and a 4 th pin of the relay Y8 are respectively connected with the receiving matching sub-circuit, a 3 rd pin of the relay Y8 is connected with the rectifying voltage stabilizing circuit 9, an 8 th pin of the relay Y8 is connected with a 12BV power supply, a 1 st pin of the relay Y8 is respectively connected with a collector of a triode Q7 and a cathode of a diode D6, a base of a triode Q7 is respectively connected with one end of a resistor R52, one end of a capacitor C113 and one end of a resistor R51, the other end of the resistor R51 is connected with a P1_1 pin of the chip N15, and the other end of the capacitor C113 is respectively connected with the other end of the resistor R52, an emitter of the triode Q7 and an anode of the diode D4 and is grounded;
the receiving matching sub-circuit comprises a grounding capacitor C102, a grounding capacitor C101, a capacitor C99, a capacitor C100, a grounding capacitor C105, a grounding capacitor C106, a capacitor C103 and a capacitor C104; one end of a capacitor C99 is respectively connected with one end of a capacitor C100, a grounding capacitor C101, a grounding capacitor C102 and a 5 th pin of a relay Y8, and the other end of a capacitor C99 is respectively connected with the other end of the capacitor C100 and a 4 th pin of the relay Y8; one end of the capacitor C103 is respectively connected with the grounded capacitor C105, the grounded capacitor C106, one end of the capacitor C104 and the 4 th pin of the relay Y7, and the other end of the capacitor C103 is respectively connected with the other end of the capacitor C104 and the 5 th pin of the relay Y7; the number of the receiving matching sub-circuits is at least 2.
As shown in fig. 8, the rectifying and voltage stabilizing circuit 9 includes a rectifying sub-circuit, a filtering sub-circuit and a voltage stabilizing sub-circuit; the rectifying sub-circuit comprises a capacitor C112, a capacitor C111, a diode D7, a diode D8, a diode D9 and a diode D10; one end of a capacitor C112 is respectively connected with the cathode of a diode D7, the cathode of a diode D8, one end of a capacitor C111 and the filter sub-circuit, the other end of the capacitor C112 is respectively connected with the other end of the capacitor C111, the anode of a diode D9, the anode of a diode D10 and the voltage-stabilizing sub-circuit, the anode of a diode D7 is respectively connected with the cathode of a diode D9 and the 3 rd pin of a relay Y8, and the anode of a diode D8 is respectively connected with the cathode of the diode D10 and grounded;
the filter sub-circuit comprises a grounded capacitor C118, a grounded capacitor C119, a grounded capacitor C120, a grounded capacitor C121, a grounded capacitor C122, a grounded capacitor C123, a grounded capacitor C124, a grounded capacitor C125, a grounded capacitor C126, a grounded capacitor C127 and a grounded capacitor C128; the grounding capacitor C118 is respectively connected with one end of the capacitor C112, the grounding capacitor C119, the grounding capacitor C120, the grounding capacitor C121, the grounding capacitor C122, the grounding capacitor C123, the grounding capacitor C124, the grounding capacitor C125, the grounding capacitor C126, the grounding capacitor C127, the grounding capacitor C128, the other end of the resistor R67 and the voltage-stabilizing electronic circuit;
the voltage stabilizing sub-circuit comprises a power supply conversion chip N8 and a triode N12; a Vin pin of the chip N8 is connected with a grounded capacitor C118, a COMP pin of the chip N8 is connected with one end of a resistor R55 and one end of a capacitor C134, the other end of the resistor R55 is connected with one end of the capacitor C133, the other end of the capacitor C133 is connected with the other end of a capacitor C112, the other end of the capacitor C134, one end of a resistor R56, a GND pin of the chip N8, one end of a resistor R58 and one end of a resistor RS4, the other end of the resistor RS4 is connected with a J4 interface of a rectifying and voltage-stabilizing output voltage end, the other end of a resistor R56 is connected with an RT/CLK pin of the chip N8, an FB pin of the chip N8 is connected with the other end of the resistor R58 and one end of a resistor R57, the other end of the resistor R57 is connected with a grounded capacitor C136, a grounded capacitor C137, one end of an inductor L13, one end of a resistor R45 and a source of the MOS transistor N9, the other end of the resistor R5 is connected with a collector nos. and a, the drain electrode of the MOS tube N9 is respectively connected with a J3 interface of a 5.8V power supply and a rectifying and voltage-stabilizing output voltage end and one end of a capacitor C138, the other end of the capacitor C138 is connected with an emitter of a triode N12 and is grounded, the base electrode of the triode N12 is connected with one end of a resistor R50, the other end of the resistor R50 is connected with a P0_7 pin of a chip N15, the other end of an inductor L13 is respectively connected with the negative electrode of a diode D11, one end of a capacitor C135 and a SW pin of the chip N8, the positive electrode of the diode D11 is grounded, and the other end of the capacitor C135 is connected with a BOOT pin of the chip N8.
In this embodiment, the transmitting bluetooth communication and control circuit 1 detects whether the receiving bluetooth communication and control circuit 7 is connected or not, if not, the receiving bluetooth communication and control circuit is connected until the connection, then whether the equipment is connected or not is detected, otherwise, the equipment is detected, the unloaded rectified voltage Vreg1 is detected, V1 is set as the matching switching voltage, when Vreg1 is less than V1, the antenna matching scheme of the magnetic resonance transmitting module 1 and the magnetic resonance receiving module 2 is selected to be switched, when Vreg1 is more than V1, charging is directly started without selecting switching, during charging, the on-load rectified voltage Vreg2 is detected, Vhigh is set as the upper limit voltage of the set switching matching scheme, Vlow is the lower limit voltage of the set switching matching scheme, when Vreg2 is less than Vlow or Vreg2 is greater than Vhigh, the matching scheme of the magnetic resonance transmitting module 1 and the magnetic resonance receiving module 2 is selected to be switched, then charging is continued, otherwise, the scheme is not switched, and continuing to charge until the charging current I < Imin, and stopping charging.
In this embodiment, the power adapter supplies power to the rf power amplifier circuit 6 through the voltage regulator circuit 5, and supplies power to the transmitting bluetooth communication and control circuit 5, and outputs power to the transmitting antenna through the rf power amplifier circuit 6, and the transmitting antenna adopts the logic process in the above embodiments according to different transmitting and receiving antenna distances, and selects different transmitting and receiving matching sub-circuits by switching the transmitting switch circuit 4 and the receiving switch circuit 8, and transmits energy to the receiving antenna, and then rectifies and converts the voltage regulator circuit 9 into direct current, and passes through the filtering sub-circuit to reach the voltage regulator sub-circuit, and the output voltage of the voltage regulator sub-circuit is the operating voltage of the electronic device. In the invention, the transmitting Bluetooth communication and control circuit 3 is used for detecting and collecting the voltage of the radio frequency power amplifying circuit 6 and controlling the switch of the switch array circuit, and the receiving Bluetooth communication and control circuit 7 is used for detecting and collecting the rectified voltage of the rectifying and voltage stabilizing circuit 9 and controlling the switch of the switch array circuit. The invention utilizes the self-adaptive matching scheme of magnetic resonance wireless power transmission, namely, the receiving Bluetooth communication and control circuit 3 and the transmitting Bluetooth communication and control circuit 7 are utilized to collect information between receiving and transmitting, and a switch array circuit is used to switch the matching schemes of the receiving and transmitting antennas by using a plurality of matching schemes of the receiving and transmitting antennas, so as to solve the problem that the transmission efficiency is poor due to the over-coupling phenomenon caused by too close distance and the under-coupling phenomenon caused by too far distance in the magnetic resonance wireless power transmission process, thereby greatly improving the transmission efficiency of different distances.
Claims (10)
1. An adaptive matching system for magnetic resonance wireless charging is characterized by comprising a magnetic resonance transmitting module (1) and a magnetic resonance receiving module (2) connected with the magnetic resonance transmitting module (1);
the magnetic resonance transmitting module (1) comprises a transmitting Bluetooth communication and control circuit (3), a transmitting switch circuit (4), a voltage stabilizing circuit (5) and a transmitting antenna which are respectively connected with the transmitting Bluetooth communication and control circuit (3), and a radio frequency power amplifying circuit (6) which is respectively connected with the transmitting switch circuit (4) and the voltage stabilizing circuit (5); the voltage stabilizing circuit (5) is connected with the transmitting switch circuit (4), and the transmitting antenna is coupled with the magnetic resonance receiving module (2);
the magnetic resonance receiving module (2) comprises a receiving Bluetooth communication and control circuit (7), and a receiving antenna, a receiving switch circuit (8) and a rectification voltage stabilizing circuit (9) which are respectively connected with the receiving Bluetooth communication and control circuit (7), wherein the rectification voltage stabilizing circuit (9) is connected with the receiving switch circuit (8), and the receiving antenna is coupled with the transmitting antenna.
2. The adaptive matching system for magnetic resonance wireless charging according to claim 1, wherein the transmitting bluetooth communication and control circuit (3) comprises a bluetooth chip N14, a voltage regulation chip N13 and a voltage regulation chip N12;
the pin DVDD2 of the chip N14 is connected to the pin DVDD1, the 3.3V power supply, the grounding capacitor C196 and the grounding capacitor C195 of the chip N14, the pin GND of the chip N14 is grounded, the pin NC of the chip N14 is connected to the 3.3V power supply, the pin P1_0 of the chip N14 is connected to the transmitting switch circuit (4), the pin P1_1 of the chip N14 is connected to the negative electrode of the LED6, the positive electrode of the LED6 is connected to one end of the resistor R79, the other end of the resistor R79 is connected to one end of the resistor R78 and the 3.3V power supply, the other end of the resistor R78 is connected to the positive electrode of the LED5, the negative electrode of the LED5 is connected to the pin P1_2 of the chip N14, the pin P1_3 of the chip N14 is connected to the voltage regulator circuit (5), the pin P867 of the chip N14 is connected to the transmitting switch circuit (864), a pin P0_6 of the chip N14 is connected with one end of a resistor R77, the other end of a resistor R77 is connected with the voltage stabilizing circuit (5), a pin P0_7 of the chip N14 is connected with one end of a resistor R75, the other end of a resistor R75 is respectively connected with one end of a capacitor C189, one end of a resistor R74 and one end of a resistor R73, the other end of a capacitor C189 is connected with the other end of a resistor R74 and is grounded, the other end of a resistor R73 is connected with the voltage stabilizing circuit (5), a pin AVDD5 of the chip N14 is respectively connected with a 3.3V power supply and a grounded capacitor C183, a pin AVDD3 of the chip N14 is respectively connected with grounded capacitors C184 and C3.3V power supply, a pin AVDD2 pin 6959 of the chip N14, a pin AVDD1 of the chip N14, a pin AVDD4 pin of the chip N14, a pin AVDD4 pin, a grounded capacitor C182, a grounded capacitor C181, a grounded capacitor C180, a grounded capacitor C179, a pin of the chip N14, a terminal of the inductor C, the other end of the capacitor C185 is connected with the other end of the capacitor C179, and is grounded, the other end of the inductor L8 is respectively connected with a power supply VCC, one end of the capacitor C178, one end of the capacitor C177 and one end of the chip N13, the other end of the capacitor C178 is respectively connected with the other end of the capacitor C177, one end of the GND pin of the chip N14, one end of the capacitor C170 and one end of the capacitor C169, the other end of the capacitor C170 is respectively connected with the Vin pin of the chip N13, the other end of the capacitor C169, one end of the capacitor C167, the Vout pin of the chip N12 and the transmitting switch circuit (4), the GND pin of the chip N12 is respectively connected with one end of the capacitor C168 and the other end of the capacitor C167, the Vin pin of the chip N12 is respectively connected with the other end of the capacitor C168 and the voltage regulator circuit (5), the RF _ P pin of the chip N14 is connected with one end of the capacitor C186, and the other end of the capacitor C, the other end of the inductor L9 is grounded, the other end of the capacitor C187 is connected to one end of the inductor L10 and one end of the inductor L11, the other end of the inductor L11 is connected to one end of the grounded capacitor C188 and one end of the inductor L12, the other end of the inductor L12 is connected to the transmitting antenna, the RF _ N pin of the chip N14 is connected to one end of the capacitor C190, the other end of the capacitor C190 is connected to the other ends of the grounded capacitor C191 and the inductor L10, the xoc _ Q1 pin of the chip N14 is connected to one end of the grounded capacitor C192 and one end of the crystal oscillator Y2, the other end of the crystal oscillator Y2 is connected to the xoc _ Q2 pin of the chip N14 and the grounded capacitor C193, the DCOUPL pin of the chip N14 is connected to the grounded capacitor C194, the R _ BIAS pin of the chip N14 is connected to the grounded resistor R76, and the pin of the chip N14 is grounded.
3. The adaptive matching system for magnetic resonance wireless charging according to claim 2, wherein the transmit switch circuit (4) comprises a transmit matching subcircuit and a transmit switch array subcircuit;
the transmit switch array sub-circuit includes relay Y4, relay Y5, and relay Y6; the 5 th pin and the 4 th pin of the relay Y4 are respectively connected with a transmitting matching sub-circuit, the 6 th pin of the relay Y4 is connected with the radio frequency power amplifying circuit (6), the 8 th pin of the relay Y4 is connected with the cathode of the diode D4 and the collector of the triode Q6, the emitter of the triode Q6 is respectively connected with the anode of the diode D4, one end of the resistor R32 and one end of the capacitor C66, and is grounded, the base of the triode Q6 is respectively connected with the other end of the resistor R32, the other end of the capacitor C66 and one end of the resistor R31, the other end of the resistor R31 is connected with the P1_7 pin of the chip N14, the 1 st pin of the relay Y4 is connected with the Vin pin of the chip N13, the 3 rd pin of the relay Y4 is connected with the 3 rd pin of the relay Y6, and the 7 th pin of the relay Y4 is connected with the 6 th pin of the relay Y5; a 4 th pin, a 5 th pin, a 7 th pin and a 2 nd pin of the relay Y5 are respectively connected with the emission matching sub-circuit, a 1 st pin of the relay Y5 is connected with a Vin pin of the chip N13, a 3 rd pin of the relay Y5 is connected with a 4 th pin of the relay Y6, an 8 th pin of the relay Y5 is respectively connected with a cathode of a diode D3 and a collector of a triode Q7, a base of the triode Q7 is respectively connected with one end of a resistor R41, one end of a capacitor C96 and one end of a resistor R40, the other end of the resistor R40 is connected with a P1_0 pin of the chip N14, and an anode of the diode D3 is respectively connected with an emitter of the triode Q7, the other end of the resistor R41 and the other end of the capacitor C96 and is grounded; a 1 st pin of the relay Y6 is connected with a Vin pin of the chip N13, a 2 nd pin of the relay Y6 is connected with a collector of a triode Q9, an emitter of the triode Q9 is respectively connected with one end of a resistor R43 and one end of a capacitor C97, the base of the triode Q9 is respectively connected with the other end of the resistor R43, the other end of the capacitor C97 and one end of the resistor R42, and the other end of the resistor R42 is connected with a P1_0 pin of the chip N14;
the emission matching sub-circuit comprises a capacitor C56, a capacitor C57, a capacitor C58, a capacitor C59, a capacitor C60, a capacitor C61, a capacitor C62, a capacitor C63, a capacitor C64, a capacitor C65, a capacitor C98, a capacitor C92, a capacitor C93, a capacitor C94 and a capacitor C95; one end of a capacitor C56 is respectively connected with one end of a capacitor C57, one end of a capacitor C58 and the 5 th pin of a relay Y4, the other end of the capacitor C56 is respectively connected with the other end of a capacitor C57, the other end of a capacitor C58, one end of a capacitor C59, one end of a capacitor C60 and the 4 th pin of the relay Y4, and the other end of the capacitor C59 is respectively connected with the other end of a capacitor C60 and the voltage stabilizing circuit (5); one end of a capacitor C61 is respectively connected with one end of a capacitor C62, one end of a capacitor C63 and the 5 th pin of a relay Y5, the other end of the capacitor C61 is respectively connected with the other end of a capacitor C62, the other end of a capacitor C63, one end of a capacitor C64, one end of a capacitor C65 and the 4 th pin of a relay Y5, and the other end of the capacitor C64 is respectively connected with the other end of a capacitor C65 and the voltage stabilizing circuit (5); one end of a capacitor C98 is connected with one end of a capacitor C92, one end of a capacitor C93 and the 7 th pin of the relay Y5, the other end of a capacitor C98 is connected with the other end of a capacitor C92, the other end of a capacitor C93, one end of a capacitor C94, the 2 nd pin of the relay Y5 and one end of a capacitor C95, and the other end of the capacitor C95 is connected with the other end of a capacitor C94 and the voltage stabilizing circuit (5).
4. The adaptive matching system for magnetic resonance wireless charging according to claim 3, wherein the number of transmit matching subcircuits is at least 2.
5. The adaptive matching system for magnetic resonance wireless charging according to claim 3, wherein the voltage stabilizing circuit (5) comprises a conversion chip N1, an operational amplifier chip N2, a MOS transistor Q3 and a voltage stabilizing chip N3;
an IN pin of the chip N1 is respectively connected with a grounded capacitor C3, one end of a resistor R1, an anode of a polar capacitor C2 and one end of a magnetic bead L1, the other end of the magnetic bead L1 is respectively connected with an anode of a polar capacitor C1 and a Vin end of the chip N12, an EN pin of the chip N1 is respectively connected with the other end of a resistor R1 and one end of a resistor R1, an AAM pin of the chip N1 is connected with one end of the resistor R1, a VCC pin of the chip N1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is respectively connected with the other end of the resistor R1, a cathode of the polar capacitor C1, a GND pin of the chip N1, a grounded resistor RS1, one end of the resistor R1, an emitter of the triode Q1, one end of the resistor R1, one end of the RS1 and one end of the resistor FB 1 are respectively connected IN parallel with one end of the resistor R1, the resistor FB 1 and the resistor, the other end of the resistor R6 is connected to the other end of the resistor R8, the cathode of the diode D1 and one end of the resistor R7, the other end of the capacitor C6 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the other end of the resistor R7, the grounded capacitor C9, the grounded capacitor C8, one end of the inductor L8, one end of the resistor R8 and the source of the MOS transistor Q8, the other end of the inductor L8 is connected to the SW pin of the chip N8 and one end of the capacitor C8, the other end of the capacitor C8 is connected to one end of the resistor R8, the other end of the resistor R8 is connected to the BST pin of the chip N8, the collector of the transistor Q8 is connected to one end of the resistor R8 and the gate of the MOS transistor Q8, the drain of the MOS transistor Q8 is connected to the rf power amplifier circuit (6), the base of the transistor Q8 and the base of the resistor R8 and the transistor R8 are connected to one end of the transistor Q8, the other end of the resistor R21 is connected with a P1_3 pin of the chip N14;
a VDD pin of the chip N2 is connected to one end of a capacitor C10, one end of a capacitor C11 and a Vout pin of the chip N3, the other end of a capacitor C10 is connected to the other end of a capacitor C11 and one end of a resistor R15, respectively, and is grounded, an OUTB pin of the chip N2 is connected to one end of a resistor R16 and the other end of a resistor R77, the other end of a resistor R16 is connected to the other end of a resistor R15 and an INB-pin of the chip N2, a chip INB + pin is connected to one end of a resistor R17, the other end of a resistor R17 is connected to one end of an inductor L3 and one end of a capacitor C14, the other end of an inductor L3 is connected to one end of a capacitor C13, one end of an inductor L13, the other end of a resistor RS 13, one end of a capacitor C13, and the other end of a resistor C13, and the other end of, the other end of the capacitor C12 is connected to the other end of the capacitor C13 and the other end of the capacitor C14, and is grounded, the VSS pin of the chip N2 is grounded, the INA + pin of the chip N2 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to one end of the capacitor C17 and the other end of the inductor L4, the other end of the capacitor C17 is connected to the other end of the capacitor C16 and the other end of the capacitor C15, the INA-pin of the chip N2 is connected to one end of the resistor R19 and the grounded resistor R20, and the other end of the resistor R19 is connected to the OUTA pin of the chip N2 and the anode of the diode D1;
the pin Vout of the chip N3 is further connected to one end of a capacitor C23 and one end of a capacitor C24, respectively, the other end of the capacitor C23 is connected to the other end of a capacitor C24, the GND pin of the chip N3, one end of a capacitor C22, and one end of a capacitor C21, respectively, and the other end of the capacitor C22 is connected to the other end of a capacitor C21, the Vin pin of the chip N3, and the other end of a resistor R73, respectively.
6. The adaptive matching system for magnetic resonance wireless charging according to claim 5, wherein the radio frequency power amplification circuit (6) comprises an integrated voltage regulation chip N4, a power tube N5, a drain bias sub-circuit, an output matching sub-circuit and a gate bias sub-circuit;
a Vin pin of the chip N4 is connected with one end of a capacitor C33, a drain of a MOS transistor Q3, one end of a capacitor C25 and the drain bias sub-circuit, the other end of a capacitor C25 is connected with the other end of a resistor RS2 and the gate bias sub-circuit, a GND pin of the chip N4 is connected with the other end of a resistor RS2, the other end of a capacitor C33 and one end of a capacitor C34, the other end of a capacitor C34 is connected with the Vout pin of the chip N4, the gate bias sub-circuit and one end of an inductor L5, the other end of an inductor L5 is connected with one end of a capacitor C35, one end of a capacitor C36 and a 4 th pin of a crystal oscillator Y1, the other end of a capacitor C35 is connected with the other end of a resistor RS2 and the other end of a capacitor C36, a 2 nd pin of a crystal oscillator Y1 is connected with the other end of a resistor RS2, a 3 rd pin of a crystal oscillator Y1 is connected with one end of a capacitor C38 and one end, the other end of the capacitor C37 is respectively connected with the other end of the capacitor C38 and the gate bias sub-circuit;
the drain bias sub-circuit comprises a polar capacitor C26, a capacitor C27, a capacitor C28, a capacitor C29, an inductor L6, a capacitor C30, a capacitor C31 and a capacitor C32; the positive electrode of a polar capacitor C26 is connected to the Vin pin of the chip N4, one end of a capacitor C27, one end of a capacitor C28, one end of a capacitor C29 and one end of an inductor L6, the negative electrode of a polar capacitor C26 is connected to the other end of a capacitor C27, the other end of a capacitor C28, the other end of a capacitor C29 and the other end of a resistor RS2, the other end of an inductor L6 is connected to one end of a capacitor C30, one end of a capacitor C31, one end of a capacitor C32, the drain of a power amplifier tube N5 and the output matching sub-circuit, and the other end of a capacitor C30 is connected to the other end of a resistor RS2, the other end of a capacitor C31 and the other end of a capacitor C32;
the gate bias sub-circuit comprises a capacitor C39, a resistor R25, a resistor R26, a resistor R27, a resistor R28 and a capacitor C40; one end of a capacitor C39 is connected to the Vout pin of the chip N4 and one end of a resistor R25, the other end of the resistor R25 is connected to one end of a resistor R26, the other end of a resistor R26 is connected to one end of a capacitor C40, one end of a resistor R27 and one end of a resistor R28, the other end of a capacitor C40 is connected to the other end of a capacitor C39, the other end of a resistor R27, the source of the power amplifier N5, the output matching sub-circuit and the other end of a capacitor C25, and the other end of a resistor R28 is connected to the other end of a capacitor C37 and the gate of the power amplifier N5;
the output matching sub-circuit comprises a capacitor C41, a capacitor C42, a capacitor C43, a capacitor C44, an inductor L7, a capacitor C45, a capacitor C46, a capacitor C47 and a capacitor C48; one end of a capacitor C41 is connected to a drain of the power amplifier N5, one end of a capacitor C42 and one end of an inductor L6, the other end of a capacitor C41 is connected to the other end of a capacitor C42, one end of an inductor L7, one end of a capacitor C43 and one end of a capacitor C44, the other end of an inductor L7 is connected to the other end of a capacitor C43, the other end of a capacitor C44, one end of a capacitor C45, one end of a capacitor C46, one end of a capacitor C47 and one end of a capacitor C48, the other end of a capacitor C48 is connected to the 6 th pin of the relay Y4, and the other end of a capacitor C45 is connected to the other end of a capacitor C46, the other end of a capacitor C47 and the gate of the power amplifier N5.
7. The adaptive matching system for magnetic resonance wireless charging according to claim 1, wherein the receiving bluetooth communication and control circuit (7) comprises a bluetooth chip N15 and a voltage regulation chip N11;
the DVDD2 pin of the chip N15 is respectively connected with a grounding capacitor C155, a grounding capacitor C156, a DVDD1 pin of the chip N15, a 3.3BV power supply, an AVDD5 pin of the chip N15, a grounding capacitor C154, a grounding capacitor C153, an AVDD3 pin of the chip N15, a grounding capacitor C151, a grounding capacitor C152, an AVDD2 pin of the chip N15, an AVDD1 pin of the chip N15, an AVDD4 pin of the chip N15, an AVDD6 pin of the chip N15, a grounding capacitor C150, a grounding capacitor C149 and one end of an inductor L18, the other end of the inductor L18 is respectively connected with a power supply VCC, one end of a capacitor C148, one end of a capacitor C147 and the pin Vout of the chip N11, the Vin pin of the chip N5 is respectively connected with one end of a 5V power supply and one end of the capacitor C146, the other end of the capacitor C147 is respectively connected with the other end of the capacitor C147, the other end of the chip N11 pin, the GND pin of the chip N11, the grounding capacitor, an NC pin of the chip N15 is connected with a 3.3BV power supply, a P1_0 pin of the chip N15 is connected with one end of a resistor R53, the other end of the resistor R53 is respectively connected with one end of a resistor R54, one end of a capacitor C114 and a base of a triode Q6, an emitter of a triode Q6 is respectively connected with the other end of a resistor R54, the other end of the capacitor C114 and an anode of a diode D5, and is grounded, a cathode of the diode D5 is respectively connected with a collector of the triode Q6 and a receiving switch circuit (8), a P1_1 pin of the chip N15 is connected with the receiving switch circuit (8), a P1_3 pin of the chip N15 is connected with one end of a resistor R68, the other end of the resistor R68 is connected with an anode of a light emitting diode LED3, a P1_4 pin of the chip N15 is connected with one end of a resistor R69, the other end of the resistor R69 is connected with an anode of the light emitting diode LED 69, and a cathode of the light emitting diode LED 69 is connected with, and grounded, the pin P0_0 of the chip N15 is connected with one end of a grounded capacitor C166, a grounded capacitor C165, a grounded resistor R71 and a resistor R70, respectively, the other end of the resistor R70 is connected with a 5.8V power supply, the pin P0_3 of the chip N15 is connected with one end of a resistor R67, the other end of the resistor R67 is connected with the rectifying and voltage stabilizing circuit (9), the pin P0_7 of the chip N15 is connected with the rectifying and voltage stabilizing circuit (9), the pin REST _ N of the chip N15 is connected with one end of a resistor R66, the other end of the resistor R66 is connected with a 3.3BV power supply, the GND pin of the chip N15 is grounded, the pin R _ BIAS of the chip N15 is connected with a grounded resistor R65, the pin DCOUPL of the chip N15 is connected with a grounded capacitor C164, the pin xssc _ Q2 of the chip N15 is connected with a grounded capacitor C163, a pin Y9, a first pin of the crystal Y599 and a second pin of the oscillator 599, and the 3 rd pin of the crystal oscillator Y9 is connected to a ground capacitor 162 and an XOSC _ Q1 pin of the chip N15, respectively, the RF _ N pin of the chip N15 is connected to one end of a capacitor C160, the other end of the capacitor C160 is connected to one end of an inductor L15 and a ground capacitor C161, respectively, the other end of an inductor L15 is connected to one end of an inductor L16 and one end of a capacitor C158, the other end of the capacitor C158 is connected to one end of a capacitor C157 and one end of an inductor L14, respectively, the other end of the inductor L14 is grounded, the other end of a capacitor C157 is connected to the RF _ P pin of the chip N15, the other end of the inductor L16 is connected to one end of an inductor L17 and one end of a ground capacitor C159, and the other end of the inductor L17 is connected to the receiving antenna.
8. The adaptive matching system for magnetic resonance wireless charging according to claim 7, wherein the receive switch circuit (8) comprises a receive switch array sub-circuit and a receive matching sub-circuit;
the receive switch array sub-circuit includes relay Y7 and relay Y8; a 1 st pin of the relay Y7 is connected with a 12BV power supply, a 2 nd pin of the relay Y7 is respectively connected with one end of a grounding capacitor C110, a grounding capacitor C109 and a capacitor C107 and one end of a capacitor C108, the other end of the capacitor C107 is respectively connected with the other end of the capacitor C108 and a 7 th pin of the relay Y7, a 3 rd pin of the relay Y7 is respectively connected with one end of a receiving antenna and a 6 th pin of the relay Y8, a 4 th pin and a 5 th pin of the relay Y7 are respectively connected with the receiving matching sub-circuit, a 6 th pin of the relay Y7 is connected with a 2 nd pin of the relay Y8, and an 8 th pin of the relay Y7 is connected with a collector of a triode Q6; a 5 th pin and a 4 th pin of the relay Y8 are respectively connected with the receiving matching sub-circuit, a 3 rd pin of the relay Y8 is connected with the rectifying voltage stabilizing circuit (9), an 8 th pin of the relay Y8 is connected with a 12BV power supply, a 1 st pin of the relay Y8 is respectively connected with a collector of a triode Q7 and a cathode of a diode D6, a base of a triode Q7 is respectively connected with one end of a resistor R52, one end of a capacitor C113 and one end of the resistor R51, the other end of the resistor R51 is connected with a P1_1 pin of the chip N15, and the other end of the capacitor C113 is respectively connected with the other end of the resistor R52, an emitter of the triode Q7 and an anode of the diode D4 and is grounded;
the receiving matching sub-circuit comprises a grounding capacitor C102, a grounding capacitor C101, a capacitor C99, a capacitor C100, a grounding capacitor C105, a grounding capacitor C106, a capacitor C103 and a capacitor C104; one end of a capacitor C99 is respectively connected with one end of a capacitor C100, a grounding capacitor C101, a grounding capacitor C102 and a 5 th pin of a relay Y8, and the other end of a capacitor C99 is respectively connected with the other end of the capacitor C100 and a 4 th pin of the relay Y8; one end of the capacitor C103 is connected to the ground capacitor C105, the ground capacitor C106, one end of the capacitor C104, and the 4 th pin of the relay Y7, respectively, and the other end of the capacitor C103 is connected to the other end of the capacitor C104, and the 5 th pin of the relay Y7, respectively.
9. The adaptive matching system for magnetic resonance wireless charging according to claim 8, wherein the number of the receiving matching sub-circuits is at least 2.
10. The adaptive matching system for magnetic resonance wireless charging according to claim 8, wherein the rectifying voltage stabilizing circuit (9) comprises a rectifying sub-circuit, a filtering sub-circuit and a voltage stabilizing sub-circuit;
the rectifying sub-circuit comprises a capacitor C112, a capacitor C111, a diode D7, a diode D8, a diode D9 and a diode D10; one end of a capacitor C112 is respectively connected with the cathode of a diode D7, the cathode of a diode D8, one end of a capacitor C111 and the filter sub-circuit, the other end of the capacitor C112 is respectively connected with the other end of the capacitor C111, the anode of a diode D9, the anode of a diode D10 and the voltage-stabilizing sub-circuit, the anode of a diode D7 is respectively connected with the cathode of a diode D9 and the 3 rd pin of a relay Y8, and the anode of a diode D8 is respectively connected with the cathode of the diode D10 and grounded;
the filter sub-circuit comprises a grounded capacitor C118, a grounded capacitor C119, a grounded capacitor C120, a grounded capacitor C121, a grounded capacitor C122, a grounded capacitor C123, a grounded capacitor C124, a grounded capacitor C125, a grounded capacitor C126, a grounded capacitor C127 and a grounded capacitor C128; the grounding capacitor C118 is respectively connected with one end of the capacitor C112, the grounding capacitor C119, the grounding capacitor C120, the grounding capacitor C121, the grounding capacitor C122, the grounding capacitor C123, the grounding capacitor C124, the grounding capacitor C125, the grounding capacitor C126, the grounding capacitor C127, the grounding capacitor C128, the other end of the resistor R67 and the voltage-stabilizing electronic circuit;
the voltage stabilizing sub-circuit comprises a power supply conversion chip N8 and a triode N12; a Vin pin of the chip N8 is connected with a grounded capacitor C118, a COMP pin of the chip N8 is connected with one end of a resistor R55 and one end of a capacitor C134, the other end of the resistor R55 is connected with one end of the capacitor C133, the other end of the capacitor C133 is connected with the other end of a capacitor C112, the other end of the capacitor C134, one end of a resistor R56, a GND pin of the chip N8, one end of a resistor R58 and one end of a resistor RS4, the other end of the resistor RS4 is connected with a J4 interface of a rectifying and voltage-stabilizing output voltage end, the other end of a resistor R56 is connected with an RT/CLK pin of the chip N8, an FB pin of the chip N8 is connected with the other end of the resistor R58 and one end of a resistor R57, the other end of the resistor R57 is connected with a grounded capacitor C136, a grounded capacitor C137, one end of an inductor L13, one end of a resistor R45 and a source of the MOS transistor N9, the other end of the resistor R5 is connected with a collector nos. and a, the drain electrode of the MOS tube N9 is respectively connected with a J3 interface of a 5.8V power supply and a rectifying and voltage-stabilizing output voltage end and one end of a capacitor C138, the other end of the capacitor C138 is connected with an emitter of a triode N12 and is grounded, the base electrode of the triode N12 is connected with one end of a resistor R50, the other end of the resistor R50 is connected with a P0_7 pin of a chip N15, the other end of an inductor L13 is respectively connected with the negative electrode of a diode D11, one end of a capacitor C135 and a SW pin of the chip N8, the positive electrode of the diode D11 is grounded, and the other end of the capacitor C135 is connected with a BOOT pin of the chip N8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/030,397 US11121589B2 (en) | 2019-10-18 | 2020-09-24 | Self-adaptive matching system for magnetic-resonance wireless charging process |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910995091 | 2019-10-18 | ||
| CN201910995091X | 2019-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110829624A true CN110829624A (en) | 2020-02-21 |
Family
ID=69542642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911185105.8A Pending CN110829624A (en) | 2019-10-18 | 2019-11-27 | Self-adaptive matching system for magnetic resonance wireless charging |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US11121589B2 (en) |
| CN (1) | CN110829624A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687600B (en) * | 2018-12-20 | 2021-07-20 | 美的集团(上海)有限公司 | Electronic device, wireless power transmission receiving circuit, communication method and wireless power transmission system |
| CN111245076B (en) * | 2020-04-23 | 2020-08-18 | 成都斯普奥汀科技有限公司 | Multi-transmit multi-receive magnetic resonance wireless charging system for medium power electronic equipment |
| US11699048B2 (en) * | 2020-11-30 | 2023-07-11 | Huawei Technologies Co., Ltd. | Wireless sensing units, systems, methods, and media |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2930112T3 (en) * | 2017-11-07 | 2022-12-07 | B G Negev Technologies And Applications Ltd At Ben Gurion Univ | Capacitive Wireless Power Transfer Using Adaptive Matching Networks |
-
2019
- 2019-11-27 CN CN201911185105.8A patent/CN110829624A/en active Pending
-
2020
- 2020-09-24 US US17/030,397 patent/US11121589B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US11121589B2 (en) | 2021-09-14 |
| US20210159738A1 (en) | 2021-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110829624A (en) | Self-adaptive matching system for magnetic resonance wireless charging | |
| CN104953682B (en) | Circuit and its device with wireless charging emission function Yu wireless charging receive capabilities | |
| CN103313473A (en) | Power line carrier communication-based light-emitting diode (LED) dimming circuit | |
| CN106227047A (en) | A kind of duplex Intellectualized Switchgear based on Zigbee-technology and method | |
| CN104902650B (en) | Solar intelligent induction street lamp controller | |
| CN204733408U (en) | Radio frequency lighting dimming system | |
| CN109459935A (en) | Intelligent housing circuit | |
| CN210724334U (en) | Self-adaptive matching system for magnetic resonance wireless charging | |
| CN108488948B (en) | Air conditioner, air conditioner control system and outdoor unit switch circuit | |
| CN204350367U (en) | Radio frequency light modulation LED power supply | |
| CN205540099U (en) | Solid -state power module of air conditioner standby zero -power | |
| CN109873477B (en) | Magnetic induction wireless charging system using magnetic resonance wireless charging technology as relay | |
| CN110855021A (en) | System for transmitting antenna switching adjustment magnetic resonance wireless charging over-coupling area | |
| CN208522184U (en) | A kind of common nun | |
| CN212343431U (en) | System for transmitting antenna switching adjustment magnetic resonance wireless charging over-coupling area | |
| CN203340350U (en) | LED road lighting control system under control of carrier communication of power lines | |
| CN211909255U (en) | Single live wire switch circuit | |
| CN210867675U (en) | Two-wire non-polarity half-duplex communication and power supply circuit | |
| CN203841495U (en) | Wireless curtain control device | |
| CN202799305U (en) | Intelligent control light-emitting diode (LED) lighting circuit | |
| CN203071663U (en) | Wireless charging circuit | |
| CN205179475U (en) | Intelligence house lighting control switch transmitting circuit based on control of miniature IC | |
| CN209806116U (en) | leakage protection circuit, leakage protection device and LED device | |
| CN214256306U (en) | Chopping signal transmission circuit of direct current transmission line | |
| CN104615051A (en) | Smart home remote control module with optocoupler drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |